.heart {
    width: 100%;
    position: fixed;
    height: 100%;
    /* background-color: wheat; */
    background-image: url(../images/checkinback.jpg);
    background-size: 100% 100%;
}

.content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    text-align: center;
}

.content>h3 {
    margin-bottom: 10%;
}

.rankList {
    padding-top: 10%;
    color: white;
}

.listContent {
    display: inline;
}

button {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border-color: white;
    font-size: 18px;
    user-select: none;
}